The Role of Chemistry in History

The Role of Chemistry in History header image 4

Entries Tagged as 'Water'

Properties of H2O

May 8th, 2008 · 8 Comments

 

HOME | INTRO OF WATER
PROPERTIES OF H2O| ORIGINS OF LIFE
HISTORY OF CIVILIZATION

  • Tetrahedral electron-pair geometry gives it its polar, bent molecular geometry
  • Oxygen atom partially negative and both of the hydrogen atoms partially positive
  • Water molecules bond to each other through hydrogen bonding
  • Water in its liquid state constantly forms and breaks hydrogen bonds which gives water its fluid nature
cialis canadian pharmacy
viagra generic now

[Read more →]

Categories: Water

Cactus

May 8th, 2008 · 7 Comments

 

BACK
cactus

Water is present in life, even in the driest locations.
Over half of this cactus’ composition is water.
BACK

[Read more →]

Categories: Water

History of Civilizations

April 22nd, 2008 · 1 Comment

 

HOME | INTRO OF WATER
PROPERTIES OF H2O| ORIGINS OF LIFE
HISTORY OF CIVILIZATION

  • Due to humans need for water, the first civilizations were started near rivers.
    - The Nile River : Egypt
    - The Tigris and Euphrates : Mesopotamia
    - The Huang He (Yellow River) : China

    nile.jpg

  • The need to control water for humans needs led to many different innovations that made modern civilizations possible
    - Canals, aqueducts, dams and plumbing
  • Humans also made advances in civilizations by harnessing waters power
    - Waterwheel and steam engine

[Read more →]

Categories: Water

Introduction of Water

April 22nd, 2008 · 2 Comments

 

HOME | INTRO OF WATER
PROPERTIES OF H2O| ORIGINS OF LIFE
HISTORY OF CIVILIZATION

  • Water is the most abundant molecule on Earth
    - 70% of Earth’s surface is water in liquid or solid state
    - Also found in the atmosphere as vapor
  • Water is found in 75% of the body
  • Even some of the driest plants on Earth are at least 50% water

[Read more →]

Categories: Water

History of Being

April 22nd, 2008 · Comments Off

 

HOME | INTRO OF WATER
PROPERTIES OF H2O| ORIGINS OF LIFE
HISTORY OF CIVILIZATION

  • Water is essential for the survival of all known forms of life
  • Water is also needed to initiate life
    Primordial Soup Theory
    - Theory on the origins of life that believes that “multimers”, chains of amino acids smaller than polymers, were the catalysts of life.
    - These multimers formed through natural chemistry with monomer amino acids in a primordial lake or pond (most likely hot acidic water with some sulphur).
    - The abundance of iron in Earth’s early stages which combined with water and ultraviolet light from the sun, would release hydrogen from the water, making it possible for amino acids to form.
    - These amino acids chains formed the first RNA which acted as both the catalyst and genes, making the organisms to duplicate on their own.*For a short clip on the primordial soup click here.

[Read more →]

Categories: Water

How Water Affected History

April 22nd, 2008 · Comments Off

HOME | INTRO OF WATER
PROPERTIES OF H2O| ORIGINS OF LIFE
HISTORY OF CIVILIZATION

In this website you will learn about both the chemical composition and characteristics of water and also the role that water has played throughout history. The main aspects of history discussed will be waters essential role in the origins and sustenance of life as well . You will also learn about how water (and man’s need/desire to utilize it) led to the rise of civilizations. Also, look for in-text links that will help you learn about all of the wonders of water.

ripple

[Read more →]

Categories: Water